Home / 831,872.44-1,147,984.32-449,899.12

Finding the Fourth Proportional to 831,872.44, 1,147,984.32 and 449,899.12

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Solution

The fourth proportional to 831,872.44, 1,147,984.32 and 449,899.12 is: 620,860.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,872.44 : 1,147,984.32 = 449,899.12 : x
  2. Step 2: Convert to fraction form
    831,872.44/1,147,984.32 = 449,899.12/x
  3. Step 3: Cross multiply
    831,872.44x = 1,147,984.32 × 449,899.12
  4. Step 4: Simplify right side
    831,872.44x = 516,477,135,341.80
  5. Step 5: Solve for x
    x = 516,477,135,341.80/831,872.44
  6. Step 6: Final answer
    x = 620,860.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.